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Slamet Hani, Slamet
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STUDI SIMULASI TRANSIEN AKIBAT SAMBARAN PETIR PADA SALURAN DISTRIBUSI 20 KV DI YOGYAKARTA DENGAN BANTUAN EMTP Hani, Slamet; Sabdullah, Mursid
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 12 No 01 Agustus 2007
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.1997

Abstract

The transient over-voltage phenomenon in an electrical power system caused by weather factors for example rain, lightning and wind, as well as by technical factors for example switching, power electronic and electrical machines. This research was conducted for at distributed transient over-voltage on a 20 kV, and 3 phase 4-wire system, due to thunder pounce. A simple way for the analysis uses EMTP program (Electromagnetic Transients Program) which is a simulation tool to this case (At 20 kV distribution line from Kentungan Power station to Kalasan-Yokyakarta). The results show that transient over-voltage occurred along the distribution lines, and the voltages vary along the distribution line length and the location where the thunder struck.
STUDI ALIRAN DAYA PADA PEMODELAN SALURAN KABEL TEGANGAN TINGGI 150 KV Hani, Slamet
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 11 Edisi Khusus Oktober 2006
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

The design and operation of electrical power system, economic factor, environ-mental factor, security factor and reliability factor shoud considered. Some kinds of elec-trical power system criterion are voltage-drop and power-loss caused by peak load.The research conducts the contribution of 150 kV underground cable transmi-ssion line to increase Yogyakarta system voltage profile. A simple way to analysis some load flow study is using Electrical Transient Analysis Program ETAP Power Station 4.0.0. Applied to in PT. PLN (Persero) Jateng-DIY Sub System Region 3, 150 kV Transmission Line.The results of simulation showed that using underground cable transmission line can decrease voltage-drop rate at the power system rep to 0.74%, compared to using o-verhead transmission line which is 1.21%. Underground cable transmission line is gene-rated of reactive power by a value off 81.48% from load reactive power. So the under-ground cable transmission line contribute to decrease voltage-drop and power-loss on the electrical power system.
PERANCANGAN SISTEM AKSES KUNCI ELEKTRONIS PADA KOTAK PENYIMPANAN MEMANFAATKAN E-KTP DAN TEKNOLOGI RFID Hani, Slamet; Santoso, Gatot; Hikam, Fahmi Bilbirril
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 1 Agustus 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

Storage box has an important function which is often used to store valuables. In general, the locking system in a storage box is still conventional or manual, making it less practical. In addition, the level of security of the storage box must also be good. As a solution to both of the above, then it is necessary to design an electronic lock system in the storage box by using Electronic Identity Card (E-KTP) as the key access. In the E-KTP embedded chip that contains data that is different from one another. So, with these differences E-KTP can be used as a key. This electronic key system utilizes Radio Frequency Identification (RFID) technology, E-KTP as RFID tags, and Arduino Nano microcontroller. The UID (unique identity) data on the E-KTP will be read by the MFRC522 RFID reader. The data is then used as identification of certain E-KTPs that can be used to access electronic keys (in the form of DC solenoids) in the storage box. The results of the system control and output are in accordance with the plan. The E-KTP registered in the system can be used to access the storage box key. The voltage on the power supply and the Arduino Nano is in accordance with the requirements and in the test, the voltage error is not more than 10%, the MFRC522 RFID Reader is able to read the UID E-KTP data with reading distance 0 mm - 2 mm.
SISTEM MONITORING DETAK JANTUNG MENGGUNAKAN MIKROKONTROLER Santoso, Gatot; -, Subandi; Hani, Slamet; Nugroho, Agung Wahyu
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 1 Agustus 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

The heart is a human organ that has a vital function. Small flaws in the heart organ can have a big effect on our body. In general, our heart beats around 60-100 times in one minute. If you exceed 100 times and less than 60 times every minute means your heart is experiencing an abnormal beat. Because some patients who suffer from heart need the automation of early detection. The development of electronic technology makes it possible for heart examinations to be carried out by the patient himself. This research aims to design and build a device to monitor heart rate using a microcontroller. Noise suppression on the ECG signal, heart rate data that has been detected and processed will be compared with normal and abnormal values ​​of the heartbeat. Furthermore, the microcontroller will determine how the heart condition is detected. From the results of the study the heart rate monitoring system using a microcontroller input voltage of 3.7 V DC was changed by the step up module to 5 V DC with a magnitude of error percentage of 0.863% and a charger module used to charge batteries with 4.2 V DC voltage and the magnitude of the error percentage amounted to 0.119%. The amped pulse sensor has an output voltage value of 2.4 V when it is relaxed and 2.6 V when it is beat, and this sensor has a constant and significant output voltage value in accordance with the rhythm of the heartbeat. The heart rate monitoring tool that is made can measure accurately and precisely, because it has a fairly small average error value of 1,727%.
P engolahan Lahan Pertanian Menggunakan Internet of Things di Desa Wukirsari, Sleman Hamzah, Amir; Hani, Slamet; Santoso, Gatot; Sidik, Khalil
DHARMA BAKTI Dharma Bakti-Vol 7 No 1-April 2024
Publisher : LPPM IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/dharma.v7i1.4653

Abstract

Tri Sedyo Manunggal Farmer Group in Wukirsari Village, Sleman Regency, Yogyakarta faces challenges in managing agricultural land. The irrigation system is still done manually, while the source of electricity to drive the water pump still depends on PLN electricity and fuel. As a solution, an internet of things is needed that can monitor soil pH, humidity, temperature, and leaf color and can be accessed remotely. The irrigation system is automatic, and the power source is obtained from solar panels to drive the water pump to lift water from the well to the output pipe. Four solar panels are used, each panel has a power of 230 watts peak, a solar charge controller with a capacity of 50 amperes, two soil pH sensors, two humidity sensors, two temperature sensors, and two color sensors. The battery used is a 12-volt Valve Regulated Lead Acid (VRLA) type with a capacity of 100 Ah. A water pump with a capacity of 300 watts with a water discharge of 47 liters per minute can meet the water needs of 1 ha of agricultural land in about 3-4 hours. The maximum electrical power generated by solar panels under maximum sunlight conditions is 920 watts peak, with a maximum current of 11.79 amperes and a maximum voltage (Vmp) of 19.5 volts. Then the solar panel will charge the battery in an empty condition for about 90 minutes in 80% sunlight efficiency conditions.
SISTEM PENGENDALI HAMA PADA TANAMAN PADI BERBASIS IoT MENGGUNAKAN TENAGA SURYA PADA MASYARAKAT DESA WUKIRSARI Maulana Wahid, Rindo; Santoso, Gatot; Hani, Slamet; Hamzah, Amir; Raharjo, Suwanto; Setyaningsih, Emy
JURNAL GAUNG INFORMATIKA Vol 16 No 2 (2023): JURNAL GAUNG INFORMATIKA
Publisher : Universitas Sahid Surakarta

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Abstract

The rice pest control system based on the Internet of Things (IoT) and powered by Solar Power Plants (PLTS) is an innovative solution aimed at enhancing productivity and sustainability in Indonesia's agricultural sector. This community service project, conducted in Wukirsari Village, Kapanewon Cangkringan, Sleman Regency, primarily focuses on addressing pest issues and technological limitations. The designed device integrates ultrasonic sensors and UV light controlled by the ESP32 microcontroller, utilizing PLTS as the energy source. The system can be accessed and controlled remotely via the Blynk server, making monitoring and control more efficient and sustainable. The research methodology includes information gathering, device design, testing, and comprehensive evaluation. Integration with PLTS ensures the system uses environmentally friendly energy. The test results indicate that the device effectively monitors and controls pests while providing ease of management with a responsive modern tool. The device operates in real-time and is highly responsive, supported by solar panels with a capacity of 920W, capable of fully charging the battery in approximately 2.6 hours. This allows the device to operate continuously for 24 hours. The implementation of this technology not only demonstrates reliability in addressing pest issues but also proves that the system can function sustainably, supporting agricultural productivity, and providing significant benefits to farmers in Wukirsari Village.
Pengindera Nirkabel menggunakan Komunikasi Serial dengan Implementasi LoRa RFM95W sebagai Transfer Data Priyambodo, Sigit; Hani, Slamet; Santoso, Gatot; Rhomadoni, R
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2023: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Industri membutuhkan gudang penyimpanan salah satunya sebagai penyimpanan bahan baku. Jarak yang jauh pada lokasi antar gudang membuat dibutuhkannya piranti seperti kabel yang banyak dalam suatu jaringan pemantauan dan menyebabkan kurangnya efektivitas dalam hal tersebut. Perkembangan ilmu pengetahuan dan teknologi memberikan dampak yang besar bagi manusia yaitu salah satunya mengembangkan teknologi untuk mengukur fenomena yang ada di sekitarnya menggunakan sensor. Membentuk jaringan komunikasi ini dibutuhkan teknologi yang dapat bekerja dengan baik. Permasalahan LoRa bersifat satu arah diatasi dengan penggabungan komunikasi serial. Komunikasi serial dapat bekerja pada jarak jangkauan yang jauh namun via kabel. Penelitian ini berguna untuk menggabungkan teknologi LoRa RFM95W yang dapat via nirkabel dan bekerja sesuai frekuensi di Indonesia namun tidak mempunyai protokol komunikasi dan hanya bisa satu arah dengan komunikasi serial yang dapat menjadikan komunikasi secara dua arah. Dari semua pengujian yang dilakukan, nilai RSSI yang didapatkan masih dalam rentang -70 hingga -120 dBm yang artinya memenuhi regulasi yang disebutkan dalam datasheet LoRa RFM95/96 dengan kurva yang linier pada setiap client.. Dengan kalimat lain, RSSI yang didapatkan dinilai baik karena lebih besar dari nilai minimum yaitu -127 dBm.
PENERAPAN TEKNOLOGI IRIGASI BERBASIS TENAGA SURYA UNTUK MENINGKATKAN PRODUKTIVITAS PERTANIAN DI DUSUN PUTAT, KAPANEWON PATUK, GUNUNGKIDUL Santoso, Gatot; Hani, Slamet; Rusianto, Toto; Wahid, Rindo Maulana; Sidik, Khalil; Wijaya, Dwi Anggra
Jurnal Hilirisasi IPTEKS Vol 7 No 3 (2024)
Publisher : LPPM (Lembaga Penelitian dan Pengabdian kepada Masyarakat) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v7i3.808

Abstract

The aim of this activity is to improve the welfare of farmers in Padukuhan Gumawang, Putat Village, Gunungkidul, through the application of irrigation technology that uses renewable energy, namely solar power. The majority of the population in this village are farmers who depend heavily on agricultural products, especially rice and secondary crops. However, one of the main problems faced is limited water during the dry season, which causes a decrease in agricultural productivity. Therefore, innovative and sustainable solutions are needed to overcome this problem. The method used in community service is designing and testing a tool to obtain a Solar Power Plant (PLTS) as an energy source to operate a submersible pump to support a more efficient and energy-saving irrigation system. Activities carried out include outreach to farmers regarding the benefits of renewable energy technology, PLTS design and installation, as well as equipment maintenance training. Apart from that, ongoing assistance is also provided so that farmers can independently manage this system. The results of this activity show an increase in farmers' understanding of the use of environmentally friendly technology and renewable energy. The PLTS-based irrigation system has succeeded in increasing agricultural land productivity by up to 30% and significantly reducing operational costs, especially savings in terms of purchasing fuel. Apart from that, the application of this technology also contributes to reducing carbon emissions in the region. Thus, this program is able to double the productivity of secondary crops, provide direct financial benefits to farmers and provide a positive and sustainable impact on improving the welfare of farmers in Padukuhan Gumawang.
Penempatan Recloser sebagai Parameter Keandalan Sistem Proteksi pada Sistem Distribusi Hani, Slamet; Santoso, Gatot; Wibowo, Romi Damar
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2019: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Jaringan distribusi merupakan bagian dari sistem tenaga listrik yang terluas jangkauannya dan jumlah gangguan paling banyak terjadi dibandingkan dengan saluran transmisi. Untuk meningkatkan keandalan sistem tenaga listrik, PT. PLN Area Yogyakarta banyak menggunakan penutup balik otomatis (recloser) pada jaringan listriknya, penentuan posisi recloser sangat penting dalam keandalan sistem tenaga listrik. Indeks keandalan yang umum digunakan pada sistem distribusi adalah SAIFI dan SAIDI. Nilai SAIFI dan SAIDI dapat dihitung berdasarkan waktu pemadaman dan tingkat kegagalan yang terjadi dalam satu tahun. Keandalan dapat disimpulkan lebih baik jika nilai SAIFI dan SAIDI lebih kecil. Penelitian ini bertujuan untuk menentukan penempatan lokasi recloser yang optimal pada jaringan tenaga listrik di penyulang KTN 05 pada Gardu Induk Kentungan Yogyakarta. Dari hasil penelitian lokasi penempatan recloser yang optimal berada pada lokasi section 2 dengan nilai SAIFI adalah 5,03 kali/tahun dan nilai SAIDI 26,67 jam/tahun,sehingga recloser akan mengamankan 93 trafo dengan 9402 pelanggan dalam jaringan sepanjang 3.35 km .
Rancang Bangun Alat Ukur dan Pengendali Pemakaian Daya Listrik berbasis SMS Gateway Santoso, Gatot; Handajadi, Wiwik; Hani, Slamet; Baskara, Gani Halim
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2019: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Pelanggan PT. PLN (Persero) selama ini mendapatkan layanan program listrik prabayar dan pascabayar, namun pada program listrik pascabayar sering terjadi human error pada saat petugas melakukan pembacaan meter. Program listrik pasca-bayar merupakan program bagi pelanggan untuk menggunakan energi listrik terlebih dahulu kemudian membayar pada bulan berikutnya. Setiap bulannya PT. PLN (Persero) harus mencatat meter, menghitung dan menterbitkan rekening yang harus di bayar oleh pelanggan dengan memasang sebuah alat ukur bernama kilo Watt Hours (kWh). Dengan menggunakan mikrokontroler Arduino Uno sebagai pengolah datanya, dan parameter yang diukur adalah arus dan tegangan menggunakan sensor arus ACS712-30A untuk mengukur arus yang mengalir dari sumber ke beban, sedangkan untuk mengukur tegangan menggunakan sensor ZMPT101B. Untuk mengirimkan data yang sudah diolah oleh Arduino Uno maka menggunakan SIM900 untuk mengirimkan jumlah pemakaian melalui SMS. Dari hasil pengujian tingkat presentase ketelitian dan ketepatan sensor arus ACS712-30A sebesar 87%, untuk ketelitian pada sensor tegangan ZMPT101B adalah 96,5%.. Sedangkan untuk pengiriman data menggunakan SIM900 error yang dihasilkan pada saat pengiriman data sebesar 100%.
Co-Authors Agung Wahyu Nugroho, Agung Wahyu Amir Hamzah Baskara, Gani Halim Edhy Sutanta (Jurusan Teknik Informatika IST AKPRIND Yogyakarta) Emy Setyaningsih Gatot Santoso Hikam, Fahmi Bilbirril Maulana Wahid, Rindo Mujahidin, Achmad Miradani Mujahidin, Achmad Miradani Novi Irawati Pribudi, Anggarani Priyambodo, Sigit Putu Susastriawan, Anak Agung Rhomadoni, R Sabdullah, Mursid Samuel Kristiyana Sidik, Khalil Subandi - Suwanto Raharjo Toto Rusianto Wahid, Rindo Maulana Wibowo, Romi Damar Wijaya, Dwi Anggra Wiwik Handajadi, Wiwik Zumar Rahafuna, Muhammad